Pump for motor-vehicles.



A. LOOMIS.

PUMP ron MOTOR VEHICLES.

APPLICATION FILED MAY 6, 1910. 1 089 41 9 Patented Mar. 10, 1914.

4 SHEETS-SHEET 1.

avwe l4 boz' Witnesses CAM/1% A. LOOMIS.

PUMP FOB MOTOR VEHICLES.

APPLICATION FILED MAY 6, 1910,

1,089,419. Patented Mar. 10, 1914.

4 SHEETS-SHEET 2.

A. LOOMIS.

PUMP FOB MOTOR VEHICLES.

APPLICATION rum) KAY a, 1910.

1 9 9,4 1 9 Patented Mar. 10, 1914.

4 SHEETS-SHEET 3.

193i kmqaow A. LOOMIS.

PUMP FOR MOTOR VEHICLES.

APPLICATION FILED MAY 6, 1910. 1,089,41 Patented Mar. 10, 19m

4 SHEETHEBBT 4.

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avwenfoz ,Z ZIZLEZFI LOG'P/EIS, OF UETRSIT.

SQMIPANY, F DETRQIT ASS'ICNOR 1'0 111 A 0031 RD MOTOR CAR MICHIGK'F.

maxim,

T: all whom i may concsm Be it knewn that I, AIL-Lax Lu citizen of theUnited Stains, and of Detroit' 33mm count-y, State 0) gan,v haveinvent/$3 csitaln and i5 :2" w eccentric 0n limle is arranged to be thepump shaft 14 00a however that this in may i 011 in any other suitablenmzmer {ruin H1225, shown. The pump 00mln'lprovenieni's in. Pun'ips forMotm- 1/ a plurality 0f cylinders 17, I? which hicks, of which thefollowing; is; a speci arm :1 single cmsfii'ig. Since both cylinderscation an: pz'nviically ii'lentical in construction only This inventionrelates in motor vehicles be described in detail. The cylinand.particularly in pump and a pump 9 as screwed thereon a head 18 andSystem {berefatw in this cylinneir vmi'ks a. hollow piston 19,

One 0f the objects is provide a pump the lower and of which is open. Acam roll which is 55mph; in constructien, effective support 20 issecured in the open end of in upemtion and which can be easily thepiston by means of screws 22, the sup semb 'ml and dis ssembled. 7 pombeing provided with stop shoulders 21.

' in girl ride a pump and l rum mil is monnfied upon a pivot pin{hen-0ft)! (:nnstructed 3; between ears 23 which are integral with an beeasily th own inm This cam mil is arranged 0 bun upon and be actuated bya cam 26 shaft 1 The cylinder )i-m'nief viil'h gmoves 2? forming .7 thecan] roll 24; so that the cam ml fuims in ehfect :1 arms head for thestun.

A Unhaped n' piston and is; pun

ands inta the lead l 52 having J slots 31 c" UIEUQI" w: 1 al ied mempreerably 7 t and bl) ccnstructed l0 lil i'l'nljfilfffi tlmrecif will bemoved (lucf inherent elas'ticiiy v "2; member is in p0 n lfig ill?slmuhlers 32 nest-ilk :Z w This Fez will in; properly upper end of themic-nix which Blur; cross pad member Flu-(her. 0' y tail desc 'ptiozn IThe inveniion will he has nection with the ascozipmaying in which,

Figur 1 an sla-mtiozi of a u flm; pmver plain, slimving ihe, i zmnimnUrea-2&0. Pig. 2 is a plan VICW certain pun: being um'i lien (w *Lha:21; line:

i i 111 t1 'ing in: lower mixture in fly; driven f wn} the jacrlmis.frmathe si lm' P ded with A pump L 51?? ('LIIHCB Char-act 4,4 which hascut therein an annular groove which is arranged to receive a ring orrigidly secured to the ring. as shown in Figs. 4 and 5, and a collar 4-9is provided so as to form a stop. This locking pin has also formedthereon a squared portion which is arranged to receive a handle 51. Theboss t-t has formed therein a circumferential groove 40' in which thepin works. By means of this construction the handle 51 may be movedtransversely so as 'to rotate the ring and the pin around the piston asan axis. In order that this handle may .be latched in position the pinis provided with a reduced portion 52 arranged to receive a spring 53bearing against the handle and an abutment 54 and the handle has mountedthereon latching members which engage a pair of keeper recesses 56 sothat this handle may be locked in different an gnlar positions, Thepiston has formed therein a longitudinal groQve 57 and a cross groove58. The upper portion of the cross groove 58 is inclined, as shown at 59in Fig. 6, for a purpose hereinafter to be de scribed.

' The valve casing for the cylinder 17 is "connected to a pipe 60 whichconnects with a'T 62 and the valve casing 42 of the cylinder 17" isconnected to the T (S2, by means of a pipe 61. The T 62 has also securedto it a nipple (53 which is arranged to receive a flexible tube. Thepump is provided with lugs 71 so that it may be bolted to the crossmember 15 by bolts passing through holes in the lugs.

The cams for operating the pistons are angularly displaced on the shaft,as shown in Fig. 3, so that when one piston is up the other is dow Thisprovides a construction whereby the pistons may be actuated successivelyso as to deliver air at a practically constant pressure. In order thatthe cylinders may thus be actuated successively and so that they may beplaced side by side and close together, it is necessary that they beslightly olt'set, as shown in Fig. 2. The cams must galso be offset, asshown in Fig. 4, in order to cooperate with the cam rolls. The pistonsare guided in their movements by means of the cam rolls and also by thesides of the Ushaped members engaging the ears 23, but the depth of thepiston is great enough to prevent any binding.

In order to throw the pistons out of operation, the handle 51 is movedin a counterclockwise direction from the position shown in Fig. 5, sothat the latching lug-55 will engage the upper recess 56. Assuming thatthe pump is; 111' operation, this movement will cause the locking pin 47to enter the cross groove 58. The cross groove 58 is preferably soarranged that the point 59 will reach the locking pin 47 when the pisionis in the highest positiou g. the cam. it, therefore. the handle ismoved, as described. the locking pin at? will positively raise thepiston so that. the cam roll 24: will bemoved from engagement with the.cam 26 and thus wear will be prevented.

In order that the ring d6 may be readily replaced. the waits ofthegroove 45 are cut away, as shown at I), I), Fig. 5, so that when thepiston is removed from the cylinder and the ring. this ring can beremoved from its groove by an outward movement. In order that the pistonmay be removed, it is necessary that the pin 47 be moved out of engagemeat with the cam grooves therein. It will 1 be noted that the section50 is square so that by pulling the handle outwardly this )in may beunscrewed by turning the ham le.

[it will be noted that all of the parts are so arranged that the entirepump may be easily assembled or dis. sscmbled.

It sometimes happens that the carburetor will e clogged up by dirt orother foreign matter and this invention therefore provides anarrangementwhereby the carburetor may be cleaned or blown out. In Figs. 1 and 7 acarburetor and mixture pipe are shown.

This iarbureter may be of any suitable and well known construction, andis provided with a float chamber 64, fuel passage 65 and a fuel nozzle66. A fuel supply pipe 67., (SS. is provided with a three-way Valve anda branch. (39, the branch 68 leading to the fuel supply tank and thebranch 69 't'oriuing a nipple for connection to thefiexible tubev r I InFig. i. the valve 70 is shown in normal position in which the floatchamber is connected with the fuel supply tank. The nipple (32) may beconnected to any suitable compressed air supply, as for instance, thepump it connection being made by a 1"lexi-v ble tube connecting thenipples (it) and. 63, By moving the valve 70 to the position shown inFig. 8, the compressed air supply is connected with branch (38 so thatthe branch pipe 68 and the fuel tank may be blown out. It will beunderstood that while this is taking place, the engine will run on thefuel in the tloat chamber. By moving the valve 70 to the position shownin Fig. 9, the compressed air supply is connected with the carburetor sothat the carhureter is blown out. It will be understood that the valveis moved to the position just. prior to the stopping of the motor. Bymeans of this arrangement, the fuel connections and the "fuel supptytank and the carbureter can be blown out and cleaned of any dirt which,may accumulate. The carbureter and pump are pr ferably located on thesame side of the engine so that the, connections may be readily made.

The'pump 1:3 may be used for various ice the tires, clean the purposes.been desc. ibed. A flexible tube may be con nected to the nipple 63 sothat the air compressed by the pump may be used to inflate seatcushions. or the vehicle generally, or to supply areservoir or the likewith compressed air. The arrangement of the cylinders and the pistons issuch that the air is supplied at substantially a uniform pressurethroughout the operation of the pump.

It is obvious that various changes may be made in..thc details ofconstruction without departing from this invention. and it is thereforeto be understood that this invention is not to be limited to thespecific contruction shown and described.

Having thus described the invention, what is claimed is,

1. In pump, the combination with a cylinder, of a piston workingtherein, a

cam, said cylinder being provided with ways, and 21V cam roll on saidpiston and working in said ways.

2. In a pump, the combination with a cylinder, of a hollow pistonworking therein, a cam roll support removably connected to said piston,said cylinder walls being pro vided with ways, and a cam roll mounted insaid support and working in said ways.

3. In a pump. the combination with a cylinder, of a hollowpiston workingtherein and having a solidface and an open end, a. spring for movingsaid piston in one direction, and an abutment for said spring inside ofsaid piston and extending through the open end thereof.

4. In a pump, the combination with a cylinder, of a hollow pistonWorking therein and having a solid face and am open end, a spring formoving said piston away from the head end of the cylinder, and an abutinnt for said spring inside of said piston and extei'iding through theopen end thereof.

ii. In a pump, the combination with a cylinder. of a piston workingtherein, a pring for moving said piston away from the head end of thecylinder and held at points beyond the travel of the piston. an abutmentfor said spring extending toward the head end of the cylinder, and anabutfine of its useful purposes has i 6. In a pump. the combination witha cylinder. of a piston working therein, spring for moving said piste?-vaway from the head end of the cylinder, an abutment for said springcomprising substantially U-shaped member matending toward the head endof the cylinder and held at poin's beyond the travel of the piston, andan abutment on said piston.

T. In a pump, the combination with a cylinder, of a piston working theein, a U- shaped abutment extending, into aid cylinder and provided witharms detahably engaging said cylinder, a removable abutment on saidpiston, and a spring between said abntments.

8. In a pump, the combination with a cylinder, of a. piston workingtherein and having a slot in its side wall, means con nected to saidpiston for o 'ierating the same, and means for rendering said pistoninoperative including a rotary member projecting into said slot. and astop on said member. v

9. In a pump, the combination with a cylinder, of a piston worlitingtherein, the cylinder being provided with 311 annular channel, a ring insaid channel, and means to move said ring, vided with a recess to permitremoval of said ring.

10. in a pump, the combn'iatlon with a cylinder. of a piston workingtherein, the cylinder being provided with an annular channel, a ring insaid channel, and a removable stop on said ring engaginr. said piston.

11. In a pump, the combination with a cylinder, of a piston workingtherein and having an L-shaped slot in. its side nail, and means on saidcylinder projecting into said slot and normally engaging thelongitudinal portion thereof and adapted to be mowd into engagement withthe transverse ort ion thereof.

In testimony whereof I affix my signature in presence of two Witnesses.

ALLEN LOOMIS.

"itnesses: 7

Don T. Hasrmos, O. 1' HUNT.

said cylinder being pro It is hereby certified that in Letters PatentNo. 1.089,41 9, grnnted March 10, 1914, upon the application of AllenLoomis. of Detroit, Michigan, for an improvement in "Pumps forMotor-Vehicles," requiring correction as follows; Page 3, lines 48-49,strike out the words and held at points beyond the travel of thepiston,"; same page, lines 74-75, strike out the words projecting intosaid siot,; same page, line 1 as now numbered, after the word cylinderinsert the words and held at points beyond the travel of the pistlm samepage, lines 75-76 as now numbered, after the word member insert thewords projecting into said slot; and that the said Letters Patent shouldbe read with these corrections therein that the same may conform to therecord of the case in the Patent O flioe.

Signed and sealed this 2lst day of Kpril, A. D., 1914.

J. T.-NEWTON, Acting Commissioner of Patents.

errors appear in the printed specification

